I would not recommend it for use in enclosed spaces (e.g. hockey rinks). There are many cheaper products that "make more music". This megaphone cannot be held in the hand and its dimensions are about twice as large as a classic megaphone. The 45 W output does not seem to me to be significantly different compared to 25 W megaphones, which was the main thing I was looking for when buying it. In case someone were considering it, I would consider

Pros: - applicable (probably) mainly in outdoor conditions - power cable for car socket

Cons: - you have to pay attention to the size. This piece is really big and practically impossible to hold in your hand. - the fact that the power is stated as 45 W does not correspond to the power that comes from the megaphone. - the sound is very deep (as if bass). Compared to hand-held megaphones with a power of 25 W, I do not see any greater benefit. - the power cable should not be connected to a car socket, but to a classic network.